title: A tree without fruit.
authors.forename: D
authors.initials: D
authors.lastname: Barnie
mesh_terms: D002568:Certification; D004521:Educational Measurement / Q000592:standards*; D005767:Gastrointestinal Diseases / Q000451:nursing*; D006801:Humans; D013041:Specialties, Nursing / Q000592:standards*